Scirpus atrovirens Willdenow (Q3371)

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Scirpus atrovirens is a taxon with the rank species within the genus Scirpus
Language Label Description Also known as
English
Scirpus atrovirens Willdenow
Scirpus atrovirens is a taxon with the rank species within the genus Scirpus

    Statements

    taxon/id/Scirpus atrovirens Willdenow
    0 references
    Scirpus atrovirens Willdenow
    Scirpus atrovirens
    Willdenow
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    scirpe noirâtre (French)
    scirpe vert sombre (French)
    dark-green bulrush (English)
    black bulrush (English)
    green bulrush (English)
    Scirpe noirâtre (English)
    1 reference
    Harms, V.L. 2003. Checklist of the Vascular Plants of Saskatchewan and the provincially and nationally rare native plants in Saskatchewan. University of Saskatchewan, University Extension Press.
    1 reference
    Newmaster, S.G. & S. Ragupathy. 2005. Flora Ontario - Integrated Botanical Information System (FOIBIS), Phase I. University of Guelph, Canada. http://www.uoguelph.ca/foibis http://www.uoguelph.ca/foibis/
    1 reference
    Marie-Victorin, Fr. 1995. Flore laurentienne. 3e éd. Mise à jour et annotée par L. Brouillet, S.G. Hay, I. Goulet, M. Blondeau, J. Cayouette et J. Labrecque. Gaétan Morin éditeur. 1093 pp.
    1 reference
    E.C. Smith Herbarium (ACAD), Acadia University, NS. Specimen. http://herbarium.acadiau.ca/
    Newfoundland, CA
    1 reference
    Meades, S., S.G. Hay & L. Brouillet. 2000. Annotated Checklist of the Vascular Plants of Newfoundland and Labrador. Published in association with A Digital Flora of Newfoundland and Labrador Vascular Plants. http://www.digitalnaturalhistory.com/meades.htm (consulted 2009-09-02) http://www.digitalnaturalhistory.com/meades.htm
    marshes
    moist meadows
    rhizomes short, tough, fibrous.
    Culms: fertile ones upright or nearly so;
    Leaves 6–11 per culm;
    sheaths of proximal leaves light-brown;
    proximal sheaths and blades with septa many, ± conspicuous;
    blades 20–54 cm × 7–17 mm.
    Inflorescences terminal, rarely also with 1 lateral inflorescence from distal leaf-axil;
    rays ascending or divergent (commonly both in the same inflorescence), proximal branches smooth, distal branches scabrellous to scabrous, rays often bearing axillary bulblets;
    bases of involucral-bracts green, margins usually speckled with redbrown, rarely solid black, not glutinous.
    Spikelets in dense clusters of 4–110 (largest cluster with 17–25+), spikelets sessile, ovoid to narrowly ovoid, 2–5 (–8) × 1–2.5 mm;
    scales dark-brown with pale midribs, elliptic or broadly elliptic (rarely almost circular), 1.2–2.1 mm, apex mucronate, mucro 0.1–0.3 (–0.4) mm.
    Flowers: perianth bristles persistent, (5–) 6, rather stout to somewhat slender, straight or curved, shorter than to slightly exceeding achene, with retrorse, thin-walled, round-tipped barbs in distal 0.3–0.6, enclosed within scales;
    Achenes light-brown, elliptic or obovate in outline, plumply trigonous or planoconvex, (0.8–) 1–1.3 × 0.4–0.6 mm. 2n = 50–60.